Oil-well pulling machine



Dec. 9, 1930. M; D. PERRY OIL WELL PULLING MACHINE Filedv Sept. 2l, 1928 2 Sheets-Sheet l ttormy Dec. 9, 1930. M. D. PERRY 1,784,311

IL WELL PULLING MACHINE Filed Sept. 21, 1928 2 Sheets-Sheet 2 Inventar Patented Dec. 9, 1930 L ATENT YFFl-CE MILESDARWIN' PERRY, OF PARKERS LANDING, PENNSYLVANIA OIL-WELL PULLING MACHINE Appneation and september 21, 192s. serial No,A 307,535.

The presentinvention relates toa portable oil well pullingV machine for pulling out and loweringI oilwell casings, tubings and rods.

At the present time,-it is customary to do suchy Work with a. team-, and a cablepassed over a pulley suspended'v from a temporary derriclc n l This methodis found to be slow andv hard to operate, and it is therefore one of the principal aims of the present inventionto provide a'inachine'for more readily and easily performing the above operations and in an eficient and reliable manner. e

A further object of the invention is to provide an oil Well p-ullingmachine of the above mentioned character, which includes lowand high speed winding drums, the high speed drum being detachably securedl upon the low speed drum.

Still a further object is to provide an oil Well pulling machine of the above mentioned character, temporarily holding the weight of thetubing or tool and taking the weight offy of the team or source of power, in case "1 of anleniergency.l

Still a further object is tozprovlde an oil welli pulling machine of the above nientionedcharacter which is simple in construction, inexpensive, strong andy durable, and further well adapted to the purpose for which it isdesigned. Y

@ther objects of the invention will be- ;come" alp-parent asthe natureV of the invention proceeds andv whentalren in connection 35 with the accompanying drawings.

ln the accompanying drawings: v Figure l isa side elevation of the oil well pulling machine embodying my invention.

Figure 2 isa front elevation of the ma- 40 chine, parts being shown in section.

Figure Slis asectionalview, talicnapproximately upon the line of Figure l, looking downwardly.

Fig-eis' a-verticalsectional view, taken on the line 45-4 of: Figure 2Q f CII VIn the drawings', wherein for the purposey of illustration' is shown the preferred einbodiment of` my invention, the numeral l designates the oil well pullingmachine, the salme comprising a'base 2, on which is secured the vertically disposed rectangular shaped frame 3. A pairof vertically disposed standards 4 and 5 are secured at their lower ends on the base 2, while the upper ends aresecured to the adjacent side-s of the framek 3. The cross bar 6 extends transversely across the lower end portions of the angularly'dis- 'posed standards secured thereto.

horizontally disposed cross beam 7 is arrangedy between the intermediate portions of the spaced standards 4' and 5, and the purpose of this crossY beam will befpresently described. Diagonally disposed braces 8 are provided for the frame 3, as more clearly illustrated in Figure 2 of the drawings.

A pair of bearingsdenoted by the reference character 9 is secured on the forward edge of the intermediate"portions of the standards 4 and and extending through these bearingsl and arranged in alignment with each other is the shaft 10. One end of theV shaft protrudes beyond the side of the frame 3 and terminates in a squared crank handle receiving portion ll, for a purpose to be presently described.

A relatively large windlass l2 is removably Vkeyedfto the shaft l() for disposition inwardly ofthe side-'standard 5 and secured'to the inner' side of the windlass l2 is the brake dru'ml, the latter being ofA a diameter slightly greater than that of the windlass as more clearly disclosed inFigure 2. Securing bolts le extend through' the outermostsides of the windlass and brake drum, connecting the parts together, and this is also clearly illustrated inFigure 2 of the' drawings. So The outer side of the windlass l2 is formed with an annular series of spaced openings l5, as disclosed inV Figure l, for receiving the removable pin 16, for a purpose also toy be presently apparent. 90

2li/ of the plate 19 will cooperate with the outer A power cable (not shown) is adapted toy be attached at one end on the windlass 12 and is capable of being wound around and unwound from the windlass for transmitting power to the shaft 10, on which said windlass is keyed, and a suitable guide 17 is provided for this cable, the other end being adapted for attachment to the team of horses or other draft (not shown). This guide is cfa substantially U-shaped structure, the ends of the arms thereof beingy secured to the cross beamv 7, whilethe arm portions of the lU-shaped guide are, slightly curved and disposed above the windlass as clearly suggested in Figures 1 and 3 of the drawings.

A low speed drum 18 is end portion of the shaft 10, inwardly of thel standard 4, vand a circular plate 19isA secured against the outer end of this low speed drum 18. yA sectional high speed drum .2() is detachably ksecured around the low speed drum 18 and the diameter of the high speed drum is slightly less thanthe outer diameter of the(y circular plate 19, and the outer edge portion face yof the brake drum 13 in retaining the elevating,orlowering cable 21,011 said wind-H ing drums, regardless of whlchone of 'said winding drums is used.

- Y@V The high speed drum 20 is preferably con@ I structed sons to provide hingedly connected 'sectionsras shownat 20,', and anyappropriate means lmay be provided for connectingthe free endsof the sections togetherin assembled relation about ,the low y speeddrum 18y `f and the cable 21in winding position will' re` tainthese sections together, said hinged sections consisting of a splitband which is braced on the drum 18 by means of members 18.

Pins 22 extend of the high speed drum 20, the ends are adapted to divide the drum 2O into two sections; one'section being designed to receive the slack Acable which is a preliminary process to the actual pulling action, or in other words when the Weight of the casing ortubing heginsto draw the cable taut theslack part of the cable is thentransferredrto the adjacent section and the actual pulling process or winding of the remainder of the cable then takes `place on the bare section thus eliminating the danger oil? having the cablesnap or Vas at 23', and W crackle which4r very often `happens when-a taut f cable is wound vo ver a slack cable. Y c Elongated bolts23extend through the central portions of thev windlass 12, brake drum 13, .and the low speed winding drum V18,t ren spectively, in spacedrelation around the shaftlO, whereby Ythe parts are `secured together in abutting relation on the@ driven shaft in a detachable manner. Theelevating andloweringcable 21 is connected at one end to the outer r side ortion of the brake drnm 13,v ien the high speed winding keyed onthe other radially from the outer-*face drum is positioned yaround the low speed l drum 18 the cable 21l will be Woundaround the-drum 19 between the radial pins 22 and theouter side of the brake dru1n13,`as suggested in Figure 2. The other end yof the cable is trained overa suitablepulley (not shown) Vand isconnected to they tubing vor drill rod while being raised from the well;V

vThe frame 3 is provided with anchor post receiving'staples 24, whereb said structure will be rendered stationary turing the use of I purpose of controlling ythe s eed and rate m of descension of thefrods vany tubing, when i lowering the sanle'into the well,there is pro-r vided a particular we1ght mechanism that .n1-

cludes a brakeband 25, that encircles the peripheral' face of the brake drum13, for Africff tional engagement therewith.;

` Alever '26is formed at ltshrear `end with.,

a'horizontally rdisposed i eyey 27, and orward-v 1 .lyjofthe horizontal eyep27,said lever is formedwith a right angularly disposed eye i L v28 thatiispivotally connected with the staple 29"that extends upwardly of the cross beam i c 7 lin a, manner as shown infFigures 2 andB.

A screw eye 31 is threaded into Vthe rear side Y ofthe cross beam 7, for disposition below the u horizontal eye 27 and boltk 30 A,that is opera- .A

t-ivelyconnected at itsflower end to one end of the split brake band25, isjthreaded andV` y disposed through the alignedeyes f 31 `and 27y and a nut 32 is threaded on the upper end ofy the eyebolt 30- for engagement with the up-l per face of the horizontal eye 27 formed on ,Y the rear end of the lever 26., Arcoil .springy A 33 encircles the eye holt 30, and is disposed between the guide eye 31, and the connection 34, the lower end of the eye-bolt and one end of the brake band.` The other end ot' the Y brake band isa'ttached tothe cross. beam.

The forward end portion of the lever 26 provides ay handle whereby whensaid handle portion is depressed, said bolt y30-is raised, f

cansingthe contraction of the brake band around the drum,rin a manner readily obvious from the construction disclosed in Figure1. ,i Byplacing the pinl 16 in oney of the openlthe shaft 10, inwardly of the. square portion `ings' 15, the rotation of the shaft and the 'l 11, and adapted for cooperation withk theV ratchet wheel 35 isa pivoted pawlf36, car,- ried by a leverv 37 vthat has a pair of plate members 38 secured on loppositesides of the L portion of the lever, and the rear ends ofy these' plates are formed .with eyes toacc'omf' modatethe shaft 17,0, the eye portion of the plates being disposed .on `oppositesides of the ratchet wheel 85, in the manner as more clearly shown in Figure 2. A pawl 36 is pivoted between the plates 38 and normally when the machine is in operation, the pawl is disengaged from the ratchet teeth of the ratchet wheel 35, and the lever 37 is swung downwardly with its free end resting on the ground. Y

I/Vhen it is desired to hold the weight of the tool or the tubing for a moment, or for the purpose of taking the weight off of the team or source of power in emergency cases, the lever 37 may be raised and the pawl 36 brought into engagement with the ratchet wheel 35, as shown in Figure l.

When using the machine for light work, instead of employing a team of horses to draw the windlass and the shaft on which the windlass is secured, a hand crank 39 may be slipped over the squared end ll of the shaft 10 and the machine then operated by hand.

A hook 40 is secured on the side of the standard 5, for receiving the locking pin 16 when the latter is not in use.

It will thus be seen from the foregoing description that I have provided an oil well pulling machine for use in raising and lowering pipes, casings and rods, and the simplicity of my machine enables the same to be efficiently operated. Also, the operations in removing or lowering tools or tubing into the well is expedited with a machine of this character. The structure of the machine is such as to permit the parts to be readily and easily assembled or disassembled.

While I have shown the preferred embodiment of my invention, it is to be understood that various changes in the size, shape and drum, a winding drum arranged on the shaft in engagement with the opposite side of the brake drum, b olts extending through the sides of the windlass, brake drum and winding drum respectively for securing the same together as a single unit, an elevating and lowering cable connected with the winding drum and pins extending radially from the outer face of said winding drum for the purpose specified.

In testimony whereof I affix my signature.

MILES DARWIN PERRY.

arrangement of parts may be resorted to,

without departing from the spirit of the invention or the scope of the appended claims.

I claim: 1. In an oil well pulling machine of the class described, a horizontally disposed driven shaft, a support therefor, actuating means for said shaft, a low speed winding drum secured on the shaft for rotation therewith, and a high speed drum detachably secured around the low speed drum for rotation with said shaft, said high speed winding drum including complementary sections, hinges connecting the sections, and means consisting of the cable on the drum sections for securing the sections against accidental swinging movement relative to one another on said hinges during the winding operation.

2. In a machine for pulling oil pipes and the like, a horizontally disposed driven shaft, a support therefor, a brake drum secured to the shaft intermediate the ends thereof, a pull cable receiving windlass secured on the shaft for rotation therewith and to actuate the same engaging one side of the brake les 

